Question

With reference to table 8.4 in the textbook, which is the weakest type of bond in the molecule?

Answer 1

I've found a similar problem as shown in the attache picture to help me solve the problem. In order to answer this, we must have empirical data on the bond energies. Please refer to this link: http://www.wiredchemist.com/chemistry/data/bond_energies_lengths.html. 

N=O: 607 kJ/mol
N=N: 418 kJ/mol
C-H: 411 kJ/mol
C-N: 305 kJ/mol
N-O: 201 kJ/mol
N-N: 167 kJ/mol

Therefore, the weakest bond is the N-N bond.